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A diagram shows two normal distribution curves, one narrow black curve and one wider blue curve, both centered on a dashed line labeled with the mean symbol   . The curves are labeled "Smaller   " and "Larger   " respectively.

A diagram shows two normal distribution curves, one narrow black curve and one wider blue curve, both centered on a dashed line labeled with the mean symbol   . The curves are labeled "Smaller   " and "Larger   " respectively.

### The mean is the same, so the peak of the curve remains at the same position along the axis. With a larger standard deviation, the curve is more spread out; with a smaller standard deviation, the curve is narrower. Mehr sehen